Fig. 2

Left: radial velocities of globular clusters (see Sect. 3.2). The horizontal dashed line is the mean heliocentric velocity of globular clusters inside 50 kpc which is 3765 km s-1. Middle: radial velocity of NGC 3311 along the major axis (black crosses with error bars) and the minor axis (red crosses) (see Sect. 3.4). Right panel: velocity dispersion of NGC 3311 along minor and major axis.
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